CZ300697A3 - Apparatus, particularly for conveying liquid - Google Patents

Abstract

Equipment, in particular for the transport of liquid, consists of a hydraulic-mechanical heat exchanger (2) converter / 3 / gear a pump container member (4) and conduits (61, 62). Workspace / 21 / heat exchanger (2), which is filled with working fluid is connected to the workspace / 31 / Hydraulic Mechanical Transducer (3), in which he is one end (321) piston (32) is stored. Opposite End / 322 / piston (32) is connected to the inlet piston (42) in the transmission member (4). Output Piston / 43 / a transmission member (4) having a cross-sectional area is smaller than the cross-sectional area of the inlet piston (42) is connected to its output side (432) with piston / 12 / in work area / 11 / pump (1) to whose suction pipe (61) is fluid reservoir connected (8). Discharge The pipe (62) of the pump (1) is routed the sampling point (9) of the liquid while the pump / 1 / is equipped with a piston sensor / 7 / which is in communication with the cooling supply (102) medium to heat exchanger (2), optionally with inlet / 101 / heat.

Description

Equipment for the transport of liquid

Technical field

BACKGROUND OF THE INVENTION The present invention relates to a device, in particular for conveying a liquid, wherein a change in the volume of the liquid due to its thermal expansion is used to drive the device.

BACKGROUND OF THE INVENTION

A number of well-known pumps are used for liquid transport. The pump needs a propulsion and a propellant such as diesel, gasoline, electricity, compressed air, liquid, or solar energy, wind energy, and so on. However, this propulsion is very expensive, solar energy cannot be used at night or on a sunny day, When pumping liquids, especially water, over longer distances, it is necessary to have drives of considerable power and hence to supply large quantities of expensive fuel. It is also disadvantageous that the outlet ducts, in order to supply liquid over long distances, have to be of larger diameters in order to minimize friction losses.

A certain disadvantage of the existing pumps is the higher noise level of their pumps when transporting the liquid.

SUMMARY OF THE INVENTION The liquid, according to the invention, of the heat associated with which is connected to the pump with the reservoir is largely removed

Said disadvantages are to the apparatus, especially for transport The apparatus consists of a heat exchanger by a hydraulic-mechanical converter, a transmission member, to which the pumped liquids are connected and an outlet pipe.

The essence of the invention is that the working space of the heat exchanger, which is filled with the working liquid, is connected to the working space of the hydraulic-mechanical converter, in which one end of the piston is mounted. The opposite end of the piston is connected • 9 9 9 999 9 999 9 • 9 9 9 9 9 • 999 9 «Μ ·· 9

-2with an inlet piston in the transmission member. The output piston of the transmission member whose cross-sectional area is smaller than the cross-sectional area of the inlet piston is connected by its outlet side to the piston in the working space of the pump. The suction line of the pump with the suction basket is connected to the liquid reservoir, the discharge line of the pump is led to the liquid collection point. The pump is fitted with a piston position sensor which is connected to the coolant transfer or heat supply to the heat exchanger.

To significantly reduce operating costs, it is advantageous if the discharge pipe of the pump is connected to the inlet to the tank, the outlet from the tank is directed to the liquid removal point. At the same time, however, at least one outlet of the tank is discharged into the heat exchanger.

For synchronous opening and closing of the actuators, it is advantageous for the piston position sensor to be connected to a shut-off element located on the tank outlet and to a shut-off element on the heat exchanger outlet.

Proper operation of the device is ensured when the pump piston is pushed to the bottom dead center by the returning device.

Preferably, the space between the piston and the inner wall of the cylinder in the pump is sealed by a cuff that is attached to the piston, while it is highly preferred that the material for making the cuff is leather.

In contrast to other known solutions, the operating costs of the liquid conveying device according to the invention are very low. By exploiting the temperature potential between the transported liquid and the environment, let it. even when transporting a colder liquid, or possibly a warmer liquid than the ambient temperature, virtually all-day operation can be ensured without the need for operator attendance.

Low cost of equipment acquisition and very low amortization are also advantageous.

The purchase cost is also reduced by the possibility of using a discharge pipe - a hose with a smaller internal cross-section than with known solutions.

Increased plant output can be provided by incorporating a heat exchanger of higher output, for example by placing it in a heat exchanger

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In another possible use of the device, the kinetic energy of the pump piston can be used not to convey liquid but to drive another device or machine.

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The invention is described in more detail in the accompanying drawings, in which FIG. 1 shows a simplified embodiment of a device, in particular for conveying a liquid, in which the pump outlet is directed directly to the liquid removal point and the heat exchanger is connected to the cooling or heat inlet; which are connected to the piston position sensor. Figure 2 shows, in a simplified manner, a variant of a device, in particular for conveying liquid using cold liquid transport, wherein a tank is provided between the outlet of the pump on the branch to the liquid removal point and the heat exchanger and the tank and heat exchanger closing elements are connected to the piston position sensor.

DETAILED DESCRIPTION OF THE INVENTION

An apparatus, in particular for conveying a liquid, is described in more detail in the example of use, in which cold water whose temperature is lower than the ambient air temperature is conveyed from the liquid reservoir 8 to the withdrawal point 9. for watering, etc.

The main parts of the device include a heat exchanger 2, a hydraulic converter 3, a gear member 4, a pump 1 with suction and discharge lines 61 and 62, a liquid reservoir 8, a piston position sensor 7 and a tank 5.

The heat exchanger 2 is a vessel 23 of cylindrical or angular shape, having a working space 21 installed inside the housing 24. This is a set of helical or otherwise curved tubes having a large surface and allowing other fluid to flow around the surface. Workspace 21 is on

-4 · © * · · · © © © © © © © © © © © © © © © © © © © © © One end, inside the vessel 23, the closed, opposite end extends into the working space 31 of the hydraulic converter 3. The working space 21 of the heat exchanger 2 and with it the working space 31 of the hydraulic-mechanical converter 3 is filled with working fluid. The working fluid is oil, or it may be another suitable fluid. The heat exchanger 2 is provided at the top and bottom with openings for the inlet 25 and the outlet 22 of the liquid.

The hydraulic-mechanical transducer 3 consists of a sealed container in which one end 321 houses a piston 32.

Its cross-section is small. The opposite end 322 of the piston 32 extends into the transmission member 4. Here, the piston 32 is rigidly connected to the inlet piston 42 of the transmission member 4.

The transmission member 4 is a graduated cylindrical vessel of solid construction. Inside the gear member 4 are two pistons. The inlet piston 42 connected to the inlet side 44 with the piston 32 of the hydraulic converter 3 and the outlet piston 43 that extends through its outlet side 432 into the working space 11 of the pump 1. The outlet piston 43 has a cross-sectional area much smaller than the cross-sectional area The working space 41 of the transmission member 4 is filled with working fluid above the inlet piston 42 above the inlet piston 42. The liquid is an oil or other suitable liquid.

The pump 1 forms a cylinder 13 of reinforced construction. The suction line 61, which terminates in the suction basket 63, is led into the liquid reservoir 8. The liquid reservoir 8 here may be, for example, a well with water or some water tank to be pumped to the collection point 9. The discharge line 62 is connected to inlet 51 to tank 5.

In the working space 11 of the pump 1 there is located a piston 12 which is rigidly connected from the suction side to the outlet side 432 of the outlet piston 43 of the transmission member 4. The piston 12 is provided with a suction valve 18 and sealed from the inner wall 14 of the cylinder 13. The collar 15 forms part of a collar shape made of leather. Alternatively, the piston 12 may be sealed in another known manner. A piston 7 position sensor is connected to the piston 12 from the discharge side.

The lower dead center is the piston 12 pushed back by the returning device 17 which produces a compression spring of suitable stiffness. The returning device 17 may also be secured in any other known manner.

The tank 5 is fed from the pump 1 via the inlet 51. The tank 5 is a tank that is located above the heat exchanger 2. Its volume is larger than the volume of the internal space 26 of the heat exchanger 2. · The outlet 52 from the tank 5 is connected via pipes or hoses with a point 9 of the conveyed liquid.

The outlet 53 from the tank 5 serves as a drain and is connected to the heat exchanger 2. A closing element is connected to the outlet 53

71, which forms a valve connected to the piston position sensor 7. A shut-off element is connected to the outlet 22 of the heat exchanger 2.

72. which forms a valve which is connected to the piston position sensor 7.

The piston position sensor 11 is connected to the piston 12 of pump 1. A construction is known and will not be described further.

In order to increase the efficiency of the device, in particular for conveying the liquid, the suction line 61 of the pump, the pump 1, the discharge line 62, the tank 5 and the outlet 53 are fitted with thermal insulation 103 to prevent the transport liquid from warming from the environment.

Function of the device, in particular for conveying the liquid, according to the example:

The assumption is that the temperature of the transported liquid is cooler than the temperature of the ambient air.

First, it is necessary for the first time to fill the tank 5 with a liquid cooler than the ambient air temperature, preferably with the liquid transported. The working area 21 of the heat exchanger 2 and the working area 31 of the hydraulic-mechanical converter 3 are filled with oil, which is heated via the interior 26 of the heat exchanger 2 either from warmer ambient air or heat supply 101 is ensured in another advantageous manner - heater or hot water heated by preferably solar collectors, and the like.

Due to the heating of the oil in the working space 31 of the hydraulic transducer 3, the oil begins to increase in volume and moves the piston 32. This feed is transmitted to the associated inlet piston 42 in the transmission member 4. The outlet piston «···

* · »• * * * * * * * *

The transmission member 4 transmits this movement, increased by the transmission ratio obtained in the transmission member 4, to the associated piston 12 of the pump 1. The piston 12 of the pump 1 starts to move from the bottom dead center to the top dead center and sucks from the liquid reservoir 8 The sensor of the piston 2 of the pump 1 commands the opening of the closing element 71 at the outlet 53 of the tank 5 at a suitable moment. The cold liquid from the tank 5 fills the interior 26 of the heat exchanger 2 or the closing element 72 at the outlet. 22 under the heat exchanger

2. is closed. The cold liquid cools the oil in the working space 21 of the heat exchanger 2 and thus in the working space 31 of the hydraulic transducer 3. The oil charge decreases its volume and the pistons 32, 42, 43 and 12 begin to move in the opposite direction. This is also aided by the return device 17 - here a compression spring, which pushes the piston 12 of the pump 1 to the bottom dead center. Now the liquid to be conveyed passes through the suction valve 18 into the space above the piston 12 in the cylinder 13 of the pump 1.

The sensor 1 of the piston 17 of the pump 1 gives, at the appropriate moment, a command to close the closure element 71 at the outlet 53 of the tank 5 and at the same time to open the closure element 72 at the outlet 22 below the heat exchanger 2. for example, back to the liquid container, or to another suitable location.

The oil in the interconnected working spaces 21 and 31 is again heated, as previously described, and the whole process is repeated, with the conveyed liquid flowing from the tank 5 to the collection point 9.

In another example of use, cooling with cold liquid from tank 5 to heat exchanger 2 can be replaced by another known advantageous coolant supply 102. Then tank 5 loses its function and does not need to be used.

In another example of use, the fluid transport device can be used to convey a liquid whose temperature is higher than the ambient temperature.

Claims (6)

PATENT CLAIMS An apparatus, in particular for conveying a fluid consisting of a heat exchanger, a hydraulic-mechanical converter, a transmission member, a pump, a fluid reservoir and a pipeline, characterized in that the working space (21) of the heat exchanger (2) which is filled with working fluid is connected to a working space (31) of the hydraulic-mechanical transducer (3) with one end (321) of the piston (32), the other end (322) of the piston (32) being connected to the inlet piston (42) in the transmission member (4) the piston (43) of the transmission member (4), the cross-sectional area of which is smaller than the cross-sectional area of the inlet piston (42), is connected by its outlet side (432) to the piston (12) in the working space (11) of the pump (1) the suction line (61) of which is connected to a liquid reservoir (8), the discharge line (62) of the pump (1) is led to the liquid collection point (9), the pump (1) being fitted with a piston position sensor (7) with inlet c to the heat exchanger (2), optionally with a heat supply (101). Device, in particular for conveying a liquid, according to claim 1, characterized in that the discharge line (62) of the pump (1) is connected to the inlet (51) of the tank (5), the outlet (52) of the tank (5). is directed to the liquid removal point (9) and at least one outlet (53) from the tank (5) is connected to a heat exchanger (2). Apparatus, in particular for the transport of liquid, according to claims 1 and 2, characterized in that the piston position sensor (7) is connected to the closing element (71) at the outlet (53) of the tank (5) and to the closing element (72) at the outlet (22) of the heat exchanger (2). Apparatus, in particular for conveying liquid, according to claims 1 to 3, characterized in that the piston (12) of the pump (1) is pushed to the bottom dead center by a returning device (17). ·· ·· · · · · · · · · · · Apparatus, in particular for conveying liquid, according to claims 1 to 4, characterized in that the space between the piston (12) and the inner wall (14) of the cylinder (13) in the pump (1) is sealed by a sleeve (15) which is connected to the piston (12). Device, in particular for transporting a liquid, according to claim 5, characterized in that the sleeve (15) is made of leather.